Add missing quote to dotnet-svcutil.xmlserializer.IntegrationTests.csproj (#5194)

* Add missing quote to dotnet-svcutil.xmlserializer.IntegrationTests.csproj

* Remove `PropertyGroup` for non dotnet 6 target frameworks

Author: tamasvajk

src/svcutilcore/tests/dotnet-svcutil.xmlserializer.IntegrationTests.csproj

@@ -22,13 +22,6 @@
     <GeneratorCliPath>$(DOTNET_INSTALL_DIR)/</GeneratorCliPath>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(TargetFramework)' != 'net6.0">
-    <!-- We're building some non-netcoreapp target, run on the Tools CLI.
-         Reuse the same runtimeconfig used by CSC. -->
-    <GeneratorRuntimeConfig>$(ToolsDir)csc.runtimeconfig.json</GeneratorRuntimeConfig>
-    <GeneratorCliPath>$(ToolsDir)dotnetcli/</GeneratorCliPath>
-  </PropertyGroup>
-
   <ItemGroup Condition=" '$(SkipTestsOnPlatform)' != 'true' ">
     <Compile Include="**\*.cs" />
     <Compile Include="$(XmlSerializerTestSource)**\*.cs" />